(a-1)2=

Solution for (a-1)2= equation:

Simplifying
(a + -1) * 2 = 0

Reorder the terms:
(-1 + a) * 2 = 0

Reorder the terms for easier multiplication:
2(-1 + a) = 0
(-1 * 2 + a * 2) = 0
(-2 + 2a) = 0

Solving
-2 + 2a = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '2' to each side of the equation.
-2 + 2 + 2a = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 2a = 0 + 2
2a = 0 + 2

Combine like terms: 0 + 2 = 2
2a = 2

Divide each side by '2'.
a = 1

Simplifying
a = 1